Origin
Southern and central Africa
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Color
Colorless, gray, White
Black, Blue, Yellow, Green
Streak
White
Grey, Greenish, Brown
For which Rashi?
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Planet
-
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Element of Planets
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Energy
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How to Wear?
Finger
-
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Ring Metal
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Deities
-
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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Tenacity
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Brittle
Solubility
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Durability
-
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Specific Gravity
2.40-2.423.28-3.44
1
7.18
👆🏻
Fracture
-
Uneven, Splintery
Cleavage
{010} Perfect, {001} Distinct
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
4.55.0-6.0
2
10
👆🏻
Chemical Composition
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
Vitreous
Vitreous, Silky
Pleochroism
-
X = blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.584-1.6151.680-1.698
1
3.25
👆🏻
Optic Character
-
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Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
monoclinic
Birefringence
0.028-0.0300.005-0.008
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
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Supports heart health
Respiratory
Good
Good
Reproductive
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Digestive
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Psychology
Imagination
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Harmony
Clear Thinking